GMC Sierra 1500 (2018) is 601 mm (23.66 inch) longer, 231 mm (9.09 inch) wider, 437 mm (17.20 inch) higher and has 1320 liters (46.62 ft3) bigger cargo space than Hyundai Elantra (2016).
Hyundai Elantra (2016) is 694 kg (1,530 lbs) lighter than GMC Sierra 1500 (2018).